Hamilton · Khaki Aviation

Strap for Hamilton Khaki Aviation H64625131

The Khaki Pilot Day-Date 42 Air Zermatt Auto / Bracelet takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Not sure about the right strap, or can't find your watch?Message me on WhatsApp
Lug width20 mm
Case diameter42 mm
ReferenceH64625131
FamilyKhaki Aviation
MovementHamilton caliber H-40 Hours, Minutes, Seconds | Date, Day
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Standard spring bar · length 20 mm · Ø 1.8 mm double flange · industry standard, no brand part number

Khaki Pilot Day-Date 42 Air Zermatt Auto / Bracelet — watch

What I'm asked about the Hamilton Khaki Aviation H64625131

What strap size does the Hamilton Khaki Aviation H64625131 take?

The Hamilton Khaki Aviation H64625131 needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Hamilton Khaki Aviation H64625131 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Hamilton Khaki Aviation H64625131?

Yes, in 20 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Hamilton Khaki Aviation H64625131?

A 20 mm calf strap, for every day. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com